Bulgaria's President Rosen Plevneliev (C) reviews the guard of honour with his Vietnamese counterpart Truong Tan Sang during a welcoming ceremony at the Presidential Palace in Hanoi October 28, 2013. ... more

Bulgaria's President Rosen Plevneliev (C) reviews the guard of honour with his Vietnamese counterpart Truong Tan Sang during a welcoming ceremony at the Presidential Palace in Hanoi October 28, 2013. Plevneliev is in Hanoi on an official visit from October 27 to 31. REUTERS/Kham (VIETNAM - Tags: POLITICS) less